CV-51002
2015.12.04
22
Differential I/O Standard Specifications
Differential I/O Standard Specifications
Table 19: Differential I/O Standard Specifications for Cyclone V Devices
Differential inputs are powered by VCCPD which requires 2.5 V.
VCCIO (V)
VID (mV)(21)
VICM(DC) (V)
Condition
VOD (V)(22)
Typ
VOCM (V)(22)(23)
Min Typ Max
I/O Standard
Min
Typ
Max
Min
Condition
Max
Min
Max
Min
Max
PCML
Transmitter, receiver, and input reference clock pins of high-speed transceivers use the PCML I/O standard. For transmitter, receiver,
and reference clock I/O pin specifications, refer to Transceiver Specifications for Cyclone V GX, GT, SX, and ST Devices table.
0.05
1.05
—
DMAX
≤
1.80
1.55
—
700 Mbps
2.5 V
VCM
=
2.375
2.5
2.625
100
—
0.247
—
0.6
1.125 1.25
1.375
LVDS(24)
1.25 V
DMAX
>
700 Mbps
—
BLVDS(25)
2.375
2.375
2.5
2.5
2.5
2.625
2.625
2.625
100
100
200
—
—
—
—
—
0.2
—
—
0.6
0.6
—
0.5
1
—
1.2
1.2
—
1.4
1.4
(26)
RSDS
VCM
=
0.25
0.300
—
—
1.45
0.1
(HIO)(27)
1.25 V
—
Mini-LVDS 2.375
(HIO)(28)
600
1.425 0.25
(21)
(22)
(23)
(24)
The minimum VID value is applicable over the entire common mode range, VCM
RL range: 90 ≤ RL ≤ 110 Ω.
.
This applies to default pre-emphasis setting only.
For optimized LVDS receiver performance, the receiver voltage input range must be within 1.0 V to 1.6 V for data rate above 700 Mbps and 0.00 V to
1.85 V for data rate below 700 Mbps.
(25)
(26)
There are no fixed VICM, VOD, and VOCM specifications for BLVDS. They depend on the system topology.
For more information about BLVDS interface support in Altera devices, refer to AN522: Implementing Bus LVDS Interface in Supported Altera
Device Families.
(27)
(28)
For optimized RSDS receiver performance, the receiver voltage input range must be within 0.25 V to 1.45 V.
For optimized mini-LVDS receiver performance, the receiver voltage input range must be within 0.300 V to 1.425 V.
Cyclone V Device Datasheet
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